AirHint found the following cheapest return flights from Houston (IAH) to Port-of-spain (POS) in September 2025 (see full year).
16 Sep - 30 Sep | United | direct |
Also check the deals for one-way flights from Houston to Port-of-spain in September.
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.